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llvm-project/llvm/test/Analysis/alias-analysis-uses.ll

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[NewPM] Pin tests with -debug-pass to legacy PM -debug-pass is a legacy PM only option. Some tests checks that the pass returned that it made a change, which is not relevant to the NPM, since passes return PreservedAnalyses. Some tests check that passes are freed at the proper time, which is also not relevant to the NPM. Reviewed By: asbirlea Differential Revision: https://reviews.llvm.org/D87945
2020-09-19 04:52:11 +08:00
; RUN: opt -debug-pass=Executions -globals-aa -function-attrs -disable-output < %s -enable-new-pm=0 2>&1 | FileCheck %s
Add an "addUsedAAAnalyses" helper function Summary: Passes that call `getAnalysisIfAvailable<T>` also need to call `addUsedIfAvailable<T>` in `getAnalysisUsage` to indicate to the legacy pass manager that it uses `T`. This contract was being violated by passes that used `createLegacyPMAAResults`. This change fixes this by exposing a helper in AliasAnalysis.h, `addUsedAAAnalyses`, that is complementary to createLegacyPMAAResults and does the right thing when called from `getAnalysisUsage`. Reviewers: chandlerc Subscribers: mcrosier, llvm-commits Differential Revision: http://reviews.llvm.org/D17010 llvm-svn: 260183
2016-02-09 09:21:57 +08:00
; CHECK: Executing Pass 'Globals Alias Analysis'
; CHECK-NOT: Freeing Pass 'Globals Alias Analysis'
; CHECK: Executing Pass 'Deduce function attributes'
; CHECK: Freeing Pass 'Globals Alias Analysis'
define void @test(i8* %p) {
ret void
}